Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: PHNXAZ19DS3

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
928-890 6 Flagstaff AZ 579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-05-05   
928-963 5 Sedona AZ 579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2021-04-24   
928-963 9 Sedona AZ 579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2018-03-22   
928-968 9 Prescott AZ 579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2021-04-24   
928-988 9 Yuma AZ 579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2023-09-08   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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